HOWTO upgrade the kernel under Arch on the Banana Pi

Banana Pi SBCs design BPI-M1/M1+/R1(A20)
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danboid have do many work on how to upgrade the kernel under Arch on the Banana Pi

more ,please see this link: http://forum.lemaker.org/forum.php?mod=viewthread&tid=22694&extra=page%3D1